Paper drier



May 10, 1932- J. w. VEDDER PAPER DRIER Filed Feb. 27, 1950 3 Sheets-Sheet 45y WW y 1932- J. w. VEDDER 1,857,222

PAP ER DR I ER Filed Feb. 27, 1950 3 Sheets-Sheet 2 77 JMJQLW @145. Z' ZZ 1:?

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PAPER DRIER Filed Feb; 27, 1950 3 Sheets-Sheet 3 Patented May 10, 1932 PATENT OFFICE JOHN WARREN VEDDER, F WORCESTER, MASSACHUSETTS PAPER DRIER Application filed February 27, 1930. Serial No. 431,907.

This invention relates particularly to the supporting means for the shafts, gears and other parts of a drier and some features of it constitute an improvement over my Patent No. 1,670,832, patented May 22, 1928.

The principal objects of this invention are to provide for supporting the cylinders and the gearing, all from a unitary structure, namely the frame, instead of having a separate gear box, as in that patent, supported independently of the frame and therefore involving the possibility of getting out of alignment; to provide means whereby the outer surface of the frame is employed as the inside of the gear casing; to provide means for supporting the steam joint on the outer surface of the gear casing so that it will be held in direct line-up with the drier cylinder to which it is connected and not involving a separate support having the possibility of getting out of alignment and to provide an improvement in the packing used for the steam joint to form a part of the outside of the frame and flexibly connected to compensate for any mis-alignment.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which 30 Fig. 1 is a side view of part of a drier constructed in accordance with this invention;

Fig. 2 is a view of one part of the gearing on the same scale as Fig. 1, showing parts in section just behind the front of the casing;

Fig. 3 is a sectional view on the line 33 of Fig. 1;

Fig. 4 is a sectional view on the line 44 of Fig. 3;

' Fig. 5 is a sectional view on the line 5-5 of Fig. 4, and

Fig. 6 is a similar view of the preferred form of packing for the steam joint,

Although the gearing is not arranged as shown in my above mentioned patent, it is arranged so that the driving is direct and positive and so that the gears on the ends of the steam heated cylinders 10 are smaller than the cylinders, for the same purpose as set forth in my patent. The several cylinders are driven by a direct line of gearing involving gears 14 alternating with gears 12 along the bottom of the machine. The gears 14 are geared by gears 11 to the gears 16 which are located on the journals of the cylinders 10 55 above, while the gears 12 previously mentioned are located on the journals of the cylinders below. The gears 14, 11 and 16 are shown in vertical alignment.

The cylinders are arranged as in the above an mentioned patent and on account of the fact that the gears on their ends are-smaller than the cylinders, they can be removed when necessary in an easy and convenient manner. The cylinders 10 are mounted on journals 15 an and all of them are mounted on the box frame 20. This frame is shown as provided with openings for roll-er or ball bearings 21 for the upper cylinders and the same is true with respect to the lower cylinders. Also the frame is provided with bearings for the studs 13 of the gears 11 and for the studs 17 of the gears 14. The journals and shafts therefore are all supported directly by the frame 20 and the possibility of mis-alignment by using a separate frame is avoided. The frame 20 is provided with edge casings 22, each surrounding a set'of these gears and each provided with a cover plate 23 which is detachably secured in position so that these gears are readily accessible. Oil holes 24 are also provided through this cover plate for an obvious purpose.

It will be seen that the box section frame 20 supports the drier cylinders and that the outer side of this box section forms the inner side of the gear casing. This is an improvement over the construction in which the gear casing is made separate and. supported separately because there is no chance of mis-alignment.

The ends of the journals of the cylinders 10 are provided with steam joints 25 as usual, but the way of supporting these steam joints is also improved. Each steam joint is provided with a support 26 which is bolted or screwed to the outer surface of the gear casing, that is, the plate 23. For this reason it is held in direct line-up with the drier cylinder to which it is connected, which avoids the complications heretofore deemed necessary to support this steam joint in alignment with the drier journal. Furthermore it is strictly lined upwith it and will not get out of position.

The packing of this steam joint also involves improvements. Instead of an ordinary packing box this joint is made, in the form shown in Figs. 4 and 5, with a gland 27 for holding the packing, this gland projecting directly into the end of the journal of the cylinder 10 and the sleeve 28 ordinarily used being provided with a ring 29 pinned to it for receiving the thrust. The ring 30 on the end of the journal is made in a separate piece overlapping the bearing. The gland 27 is adjustable by pivotally connected screws 32.

In the'form shown in Fig. 6, however, additional advantages are secured because, 111- stead of having the packing gland, this joint is made up with an outside casting 33 secured to the plate 23. On the sleeve 28 is a packing 42, as usual, which is held in position by an inside casting 34. The parts 33 and 34 are adjustably and yieldingly held apart by springs 35 and screws 36 and the two parts are connected by a flexible sylphon 37 comprising a transversely corrugated flexible metal tube sealed at its ends against the ends of the parts 33 and 34. The flexibility of this sylphon compensates for any mis-alignment. The castings 33 and 34 are held against turning by akey 38.

This latter form constitutes a construction flexible enough to take care of any irregularities that may occur and furthermore theparts are much more rigidly mounted than has been the case heretofore and more thoroughly aligned with each other. There fore this constitutes a material improvement in this respect.

By providing the steam joint with such a connection and supporting the joint from a stationary member, such as the gear casing or frame of the machine as shown, the steam joint is guarded against displacement and the flexible adjustment and the usual means for turning a siphon pipe 40 can be employed. This pipe can be turned as much as may be necessary without introducing any leakage. It is carried by the sleeve through a support 41.

Although I have illustrated and described only one form of the principal part of the invention and two forms of the flexible connecting means I am aware of the fact that other modifications can be made therein by any person skilled in the art without departing from the scope of the invention as expressed in the claims. Therefore, I do not wish to be limited in this respect but what I do claim is 1. In a paper drying machine, the combination with steam heated cylinders over which the web of paper is adapted to pass, a gear on the journal of each of the cylinders, gears for driving and connecting the journal gears, a box frame for supporting the cylinders having bearings therein supported entirely within said box frame for the journals of the cylinders, the second named gears having" studs extending in one direction only therefrom, said box frame having supports for said studs and constituting the inner surface of the gear casing, and a gear-casing comprising-in addition a surrounding'casing secured to the box frame and a plate removably mounted on the surrounding casing constituting the outside wall of the gear casing.

2. In a paper drying machine, the combination with steam heated cylinders having steam" joints, and over which the Web of paper is adapted to pass, a gear on the journal of each of the cylinders, gears for driving and con necting the journal gears, a box frame for supporting the cylinders having bearings therein supported entirely within said box frame for the journals of the cylinders, the second named gears having studs extending in one direction only there rom, said box frame having supports for said studs and constituting the inner surface of the gear casing, and a gear casing comprising in addition a surrounding casing secured to the box frame and a plate removably mounted on the surrounding casing constituting the outside wall of the gear casing, said plate forming a support for steam joints of said cylinders.

In testimony whereof I have hereunto affixed my signature.

JOHN IVARREN VEDDER. 

